Electric switch



Sep- 17 1929' c. F. SCHWENNKER ELECTRIC SWITCH Filed sept. 29, 1927 Vexfoi"a @Maples F. .ichvvennkem x .141 ...i t Y u @s suh might nteere with the e sexing sf sssg the EGW@ piste section being deectm commet Tod have accordingly pmvded @utwady by 5511s huge int@ the pocket a hump 32 on each link S29, ons enc of which The Jimi break in the clcut Occurs bewill engage as as stopy im extension 33 'on the L 'Ehe 05. and she il "emeafe miler angie pints 27. Th folles assembly is web oe; kes my bming that may oc- 75' in the casing Whilst the separate mers sngage on oppose sides he rmi @mi the csnsct pae sectfmsy me springs behind file paes being cons'zuced 'o pm?- duc@ the @quired Contact sganst to bemet. 'e arcinp; bei as shaun pacuwhen is engaged am 1s ended mth ou *sockets fr usward e the u e A ,2 i y m and with a central upwarcy e siding E@ The poc'xets are snap/ so meen/*s nent ampng sc- 35 @su ich@ um SG1: eu-

saco-mi and coma@ lstance to upwmf esessmv mmf/e 'the ansias" Cil maassc of said other rollers and arranged to be moved thereby from a position displaced from said plate to a position between the plate and the contact rod.

6. An electric switch having a movable contact rod and a Xed contact comprising a contact plate, a plurality of rollers arranged to have rolling contact with the face of the plate and to be successively engaged by the contact rod, one of said rollers being displaced from the face of the plate when the rod is in open circuit position and means responsive to movement of another of said rollers for drawing said one roller from its displaced position to a position between the plate and thev rod.

7. An electric switch having a movable contact rod and fixed contact comprising a contact plate, a plurality of rollers arranged to make rolling contacts with the rod and the plate and means for withdrawing one of said rollers out of the path of the rod when the rod is being moved to `open circuit position.

8. An electric switch having a movable Contact rod and a fixed contact comprising a contact plate, a plurality of rollers arranged to make rolling contact with the plate and the rod and a member having a pocket arranged to receive one of said rollers and hold the same out of the path of the rod when the same is withdrawn' from the fixed contact.

9. An electric switch `having a fixed contact comprising a casing, a contact plate therein having a plurality of sections, resilient means between each section `and the casing, flexible conductors connecting together said sections, and a plurality of.`

rollers adapted to engage on opposite sides the respective sections and a cooperating movable contact rod.

l0. An electric switch having a fixed contact comprising a casing, a plurality of contact plates therein each having a plurality of sections, resilient means between each section and the casing, flexible conductorsconnecting together and to the casing, a plurality of sets of rollers adapted to engage the respective sections and to engage opposite sides of a cooperating movable contact rod and a roller retaining member arranged in the open circuit position of the rod to retain one roller of each set in a position laterally displaced from the plates and the rod.

In witness whereof, I have hereto placed my hand this 28th day of September, 1927.

CHARLES F. SCHWENNKER. 

